Argyranthemum plant named ‘G15104’

ABSTRACT

A new and distinct cultivar of Argyranthemum plant named ‘G15104’, characterized by its upright and somewhat outwardly spreading plant habit; freely branching habit; dense and bushy appearance; freely flowering habit; large single-type inflorescences with creamy yellow-colored ray florets and yellow orange-colored disc florets; and good garden performance.

Botanical designation: Argyranthemum frutescens.

Cultivar denomination: ‘G15104’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Argyranthemum Plant Named ‘G15101’

Applicants: Irene E. Palmer & Michael S. Owen

Filed: Concurrently with this application

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Argyranthemum plant, botanically known as Argyranthemum frutescens and hereinafter referred to by the cultivar name ‘G15104’.

The objective of the breeding program is to create new Argyranthemum plants with attractive ray and disc floret colors, sterility and good garden performance.

The new Argyranthemum plant is a naturally-occurring whole plant mutation of Argyranthemum frutescens ‘Butterfly’, not patented. The new Argyranthemum plant was discovered and selected by the Inventors as a single flowering plant from within a population of plants of ‘Butterfly’ in a controlled greenhouse environment in Bellefonte, Pa. in August, 2014.

Asexual reproduction of the new Argyranthemum plant by vegetative tip cuttings was first conducted in Bellefonte, Pa. on Nov. 17, 2014. Asexual reproduction by terminal vegetative cuttings has shown that the unique features of this new Argyranthemum plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Argyranthemum have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of the new Argyranthemum plant. These characteristics in combination distinguish ‘G15104’ as a new and distinct Argyranthemum plant:

-   -   1. Upright and somewhat outwardly spreading plant habit.     -   2. Freely branching habit; dense and bushy appearance.     -   3. Freely flowering habit.     -   4. Large single-type inflorescences with creamy yellow-colored         ray florets and yellow orange-colored disc florets.     -   5. Good garden performance.

Plants of the new Argyranthemum differ from plants of the mutation parent, ‘Butterfly’, in the following characteristics:

-   -   1. Plants of the new Argyranthemum have larger ray florets than         plants of ‘Butterfly’.     -   2. Ray florets of the new Argyranthemum are lighter yellow in         color than ray florets of plants of ‘Butterfly’.

Plants of the new Argyranthemum differ from plants of Argyranthemum frutescens ‘G15101’, disclosed in a U.S. Plant patent application Ser. No. 15/732,081, in the following characteristics:

-   -   1. Plants of the new Argyranthemum have smaller inflorescences         than plants of ‘G15101’.     -   2. Ray florets of the new Argyranthemum are lighter yellow in         color than ray florets of plants of ‘G15101’.

Plants of the new Argyranthemum can be compared to plants of Argyranthemum frutescens ‘Vanilla’, disclosed in U.S. Plant Pat. No. 14,642. In side-by-side comparisons, plants of the new Argyranthemum differ primarily from plants of ‘Vanilla’ in the following characteristics:

-   -   1. Plants of the new Argyranthemum have larger ray florets than         plants of ‘Vanilla’.     -   2. Ray florets of the new Argyranthemum are creamy yellow in         color whereas ray florets of plants of ‘Vanilla’ are initially         yellow in color and become creamy white in color with         development.

Plants of the new Argyranthemum can also be compared to plants of Argyranthemum frutescens ‘Bonmadwitim’, disclosed in U.S. Plant Pat. No. 18,711. In side-by-side comparisons, plants of the new Argyranthemum differ primarily from plants of ‘Bonmadwitim’ in ratio of ray floret length to disc diameter as inflorescences of plants of ‘Bonmadwitim’ have ray florets that are approximately equal in length to the diameter of the disc whereas inflorescences of plants of the new Argyranthemum have ray florets that are approximately 1.5 times in length to the diameter of the disc.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Argyranthemum showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Argyranthemum plant.

The photograph at the bottom of the sheet comprises a side perspective view of a typical flowering plant of ‘G15104’ grown in a container.

The photograph at the top of sheet is a close-up view of a typical flowering plant of ‘G15104’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown during the spring in 11.5-cm containers in an acrylic-covered greenhouse in Carleton, Mich. and under cultural practices typical of commercial potted Argyranthemum production. During the production of the plants, day and night temperatures ranged from 18° C. to 27° C. Plants were eleven weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Argyranthemum frutescens ‘G15104’. -   Parentage: Naturally-occurring whole plant mutation of Argyranthemum     frutescens ‘Butterfly’, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About one to two weeks at             soil temperatures about 22° C.         -   Time to initiate roots, winter.—About two to three weeks at             soil temperatures about 22° C.         -   Time to produce a rooted young plant, summer.—About three to             four weeks at ambient temperatures about 22° C. to 27° C.         -   Time to produce a rooted young plant, winter.—About four to             five weeks at ambient temperatures about 18° C. to 23° C.         -   Root description.—Medium in thickness, fibrous; close to             white in color, actual color of the roots is dependent on             substrate composition, water quality, fertilizer type and             formulation, substrate temperature and physiological age of             roots.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Herbaceous perennial; upright to             somewhat outwardly spreading plant habit; vigorous growth             habit and moderate growth rate.         -   Branching habit.—Freely branching growth habit with about             nine primary branches, each with about three to four             secondary lateral branches developing per plant.         -   Plant height, soil level to top of foliar plane.—About 29             cm.         -   Plant height, soil level to top of floral plane.—About 39             cm.         -   Plant width.—About 45 cm.         -   Lateral branches.—Length: About 25 cm. Diameter: About 6 mm.             Internode length: About 2.6 cm. Strength: Strong; young             stems, flexible. Aspect: Highly variable, about 15° to about             45° from vertical. Texture: Smooth, glabrous. Luster: Matte.             Color, developing: Close to 146C; at the internodes, close             to 146C. Color, developed: Close to 146B; at the internodes,             close to 146C. -   Leaf description:     -   -   Arrangement.—Alternate, simple.         -   Length.—About 6.7 cm.         -   Width.—About 4.6 cm.         -   Lobe depth.—About 2.5 cm.         -   Shape.—Pinnatifid; in outline, elliptical.         -   Apex.—Acute.         -   Base.—Attenuate, equilateral.         -   Margin.—Deeply dissected with three to seven narrow lobes.         -   Sinuses.—Parallel.         -   Texture, upper and lower surfaces.—Smooth, glabrous.         -   Luster, upper and lower surfaces.—Matte.         -   Venation.—Pinnate.         -   Color.—Developing leaves, upper and lower surfaces: Close to             146A. Fully expanded leaves, upper surface: Close to 137B;             venation, close to 146C. Fully expanded leaves, lower             surface: Close to 146A; venation, close to 146B.         -   Petioles.—Length: About 3.8 cm. Diameter, flattened: About             5 mm. Strength: Moderately strong. Texture, upper and lower             surfaces: Smooth, glabrous. Luster, upper and lower             surfaces: Very slightly glossy. Color, upper and lower             surfaces: Close to 146B. -   Inflorescence description:     -   -   Inflorescence form and arrangement.—Single-type terminal and             axillary inflorescences held above and beyond the foliar             plane on strong peduncles; ray and disc florets arranged             acropetally on a receptacle; inflorescences face mostly             upright to somewhat outwardly.         -   Flowering habit.—Freely flowering habit with about 120             inflorescence buds and open inflorescences per plant.         -   Flowering season.—Plants flower from spring to frost in             Pennsylvania; flowering continuous during this period;             plants begin flowering about six weeks after planting.         -   Inflorescence longevity.—Inflorescences last about five to             seven days on the plant; inflorescences persistent.         -   Fragrance.—Slightly fragrant, sour.         -   Inflorescence buds.—Height: About 1.7 cm. Diameter: About             1.2 cm. Shape: Spherical to slightly conical. Texture:             Smooth, glabrous. Luster: Involucral bracts, slightly             glossy; ray florets, matte. Color: Close to 6D.         -   Inflorescence size.—Diameter: About 4.8 cm. Depth (height):             About 1.8 cm. Diameter of disc: About 1.5 cm. Receptacle             diameter: About 1.6 cm. Receptacle height: About 5 mm.             Receptacle shape: Flat and shallow dome. Receptacle color:             Close to 146A to 146B.         -   Ray florets.—Quantity per inflorescence and arrangement:             About 21 arranged in about 1 to 1.25 whorls. Length: About             2.5 cm. Width: About 6 mm. Shape: Ligulate. Apex: Rounded,             emarginate or minutely tri-dentate. Base: Attenuate. Margin:             Entire. Aspect: Slightly upward; apices slightly recurved.             Texture, upper and lower surfaces: Smooth, glabrous; shallow             longitudinal ridges. Luster, upper and lower surfaces:             Matte. Color: When opening, upper surface: Close to 5C. When             opening, lower surface: Close to 5D. Fully opened, upper             surface: Close to 5C; towards the apex, close to 5D; towards             the base, close to 5B; venation, close to 5C; with             development, color becomes closer to 4C and towards the             base, close to 5B to 5C. Fully opened, lower surface: Close             to 4C to 4D; venation, close to 4C; with development, color             becoming closer to 4D.         -   Disc florets.—Quantity per inflorescence and arrangement:             About 250 spirally arranged in about twelve whorls at the             center of the receptacle. Length: About 6 mm. Diameter:             About 1 mm. Shape: Tubular with five free apical lobes.             Apex: Acute. Texture, inner and outer surfaces: Smooth,             glabrous. Luster, inner and outer surfaces: Slightly glossy.             Color, immature, inner and outer surfaces: Close to 17A.             Color, immature, inner and outer surfaces: Close to 17B;             venation, close to 17B; color does not change with             development.         -   Phyllaries.—Quantity per inflorescence and arrangement:             About 20 arranged in about three whorls. Length: About 8 mm.             Width: About 3 mm. Shape: Elliptical. Apex: Acute. Base:             Truncate. Margin: Entire. Texture, upper and lower surfaces:             Smooth, glabrous; edges, membraneous. Luster, upper surface:             Moderately glossy. Luster, lower surface: Matte. Color,             upper surface: Close to 146B. Color, lower surface: Close to             146A to 146B.         -   Peduncles.—Length, terminal peduncle: About 6 cm. Diameter,             terminal peduncle: About 2 mm. Length, third peduncle: About             8.4 cm. Diameter, third peduncle: About 2 mm. Angle:             Terminal peduncle, curling upright; lateral peduncles, about             45° to 55° from primary lateral axis. Strength: Moderately             strong. Texture: Smooth with shallow longitudinal ridges,             glabrous. Luster: Matte. Color: Close to 146A.         -   Reproductive organs.—Androecium: Present on disc florets             only; five per disc floret. Filament length: Less than 1 mm.             Filament color: Close to 145D. Anther length: About 1 mm.             Anther shape: Lanceolate. Anther color: Close to 15B. Pollen             amount: None observed to date. Gynoecium: Present on both             ray and disc florets; one per floret. Pistil length: About             6 mm. Stigma diameter: About 1 mm. Stigma shape: Bi-parted.             Stigma color: Close to 15A. Style length: About 2 mm. Style             color: Close to 2C. Ovary color: Close to 157A.         -   Seeds and fruits.—Seed and fruit production has not been             observed on plants of the new Argyranthemum to date. -   Disease & pest resistance: Plants of the new Argyranthemum have not     been shown to be resistant to pathogens and pests common to     Argyranthemum plants. -   Garden performance: Plants of the new Argyranthemum have been     observed to have good garden performance and to tolerate rain, wind     and to tolerate low temperatures about 1.7° C. and to be suitable     for USDA Hardiness Zones 10 and 11. 

It is claimed:
 1. A new and distinct Argyranthemum plant named ‘G15104’ as illustrated and described. 